John D. Douro — 2 Patents at General Motors

John D. Douro has been granted 2 US patents while listed as an inventor at General Motors. The first was granted in 2005 and the most recent in October 2008. John D. Douro ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list John D. Douro in Ortonville, MI, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
7438117	Cylinder block casting bulkhead window formation	Peter C. Emling, Jason Murphy	2008-10-21	$6,051,000
6955142	Piston and cylinder oil squirter rail and system	Dipak R. Patel	2005-10-18	$16,432,000

John D. Douro — 2 Patents

Issued Patents All Time

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